Fiat Brava Diesel Key Code Problem

[Alan]

For no reason my P Reg Diesel Brava car is not recognising the key code so unable to start car. I have read handbook says visit dealer - Diagnostic £50 plus VAT !!!!!!!!!!!!
Please help

 

[Anonymous]

Tried the red key ?

sven

 

[Alan]

Tried all the keys individually. and through desparation in all different combinations. even tried separating the keys for a few hours.

 

[Anonymous]

Not sure, but I think someone sead that the code key light starts to shine all the way, when the batt is ready to go

sven